feat(remote_command): provide the query for the progress of decrees including both local writes and duplications

[empiredan]

There are many kinds of decrees while writing locally and duplicating to remote clusters, for example, the max decree in prepare list, the last decree that has ever been committed, the last decree that has been applied into rocksdb memtable, the last decree that has been flushed into rocksdb sst files, the max decree that has been confirmed by remote cluster for duplication, etc..

These decrees are very useful while we want to watch the progress of all the local writes and duplications. These decrees might also help us diagnose the problems. Therefore, we provide a tool in the way of remote_command to show the decrees for each replica.